package demo5;

public class Stringa {
	public Stringa(){
		System.out.println("init");
		
	}
	
	public String add(String a,String b){
		return a+b;
	}
	
	public int stringlength(String a){
		return a.length();
	}
	
	public String replace(String a,String b){
		return a.replace(a, b);

    }
}